< Back to rules searchElasticsearch domain resides in a VPC
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Description
Ensure your Amazon Elasticsearch (ES) domain is only accessible from an AWS VPC.
Rationale
Using a VPC gives your Amazon ES domains an extra layer of security. Launching your clusters within a VPC ensures communication between your clusters and other AWS services is secure.
Once a domain is created with a public endpoint, it cannot be switched to VPC access. Follow the Migrating from Public Access to VPC Access docs to learn how to create a new domain and either manually reindex or migrate your data.